Bifalgorithm post · Human Nutrition · Overview of Fluid and Electrolyte Balance

Water Content

Water Content (Human Nutrition · Overview of Fluid and Electrolyte Balance) — "Water is made up of 2 hydrogen atoms and 1 oxygen atom. A human body is made up…

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  • Water is essential to the composition and condition of the human body.
  • A water molecule contains two hydrogen atoms and one oxygen atom.
  • The human body is made up mostly of water.
  • Total body water varies by age, sex, and body composition.
  • An adult contains about 37 to 42 liters of water, or about eighty pounds.
  • Newborns are approximately 70 percent water.
  • Adult males are typically about 60 percent water.
  • Adult females are typically about 55 percent water.
  • The difference between males and females reflects differences in body-fat content.
  • Body fat is practically water-free.
  • Gaining weight as fat decreases the percentage of total body water.
  • Total body water diminishes as people age.
  • By the eighties, the percentage of body water decreases to around 45 percent.
  • Hydration has important effects on aging and health.
  • Dehydration accelerates the aging process.
  • Keeping hydrated decreases headaches, muscle aches, and kidney stones.
  • A study found that women drinking more than five glasses of water daily had a significantly lower risk of developing colon cancer.
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Water Content

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Human Nutrition

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"Water is made up of 2 hydrogen atoms and 1 oxygen atom. A human body is made up of mostly water. An adult consists of about 37 to 42 liters of water, or about eighty pounds. Newborns are approximately 70 percent water. Adult males typically are composed of about 60 percent water and females are about 55 percent water. This gender difference reflects the differences in body-fat content, since body fat is practically water-free. This also means that if a person gains weight in the form of fat the percentage of total body water content declines. As we age, total body water content also diminishes so that by the time we are in our eighties the percent of water in our bodies has decreased to around 45 percent. Dehydration accelerates the aging process whereas keeping hydrated decreases headaches, muscle aches, and kidney stones. Additionally, a study conducted at the Fred Hutchinson Cancer Research Center in Seattle found that women who drank more than five glasses of water each day had a significantly decreased risk for developing colon cancer."

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